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TI-2025-17793 Aliases CVE-2025-24026

iTop Inefficient Regular Expression Complexity vulnerability

Priority LOW 24CWE-1333Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-1333.

Summary

iTop is an web based IT Service Management tool. Versions prior to 3.2.1 are vulnerable to regular expression denial of service (ReDoS) that may, under some circumstances, affect iTop server. Version 3.2.1 doesn't use the affected variable in the regular expression. As a workaround, if iTop app_root_url is defined in the configuration file, then there is no possible way to exploit this ReDoS.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00332 26th percentileScored 2026-11-07
Fix Fixed iTop (Combodo): 3.2.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CombodoiTopbefore 3.2.13.2.1Patch availableCNA
  • iTop VendorCombodo Affected before 3.2.1 Fixed in 3.2.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:combodo:itop:*:*:*:*:*:*:*:*before 3.2.1VulnerableCombodo
  • cpe:2.3:a:combodo:itop:*:*:*:*:*:*:*:* Versions before 3.2.1 Vulnerable ·Combodo

Remediation

  • Fix · CNA iTop (Combodo) Fixed in 3.2.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-24026

References

Advisory 1

  • TI-2022-08681 Stored Cross-site Scripting in Combodo iTop CVSS 3.1HIGH 8.7
  • TI-2022-08593 Code Injection in Combodo iTop CVSS 3.1HIGH 8.8
  • TI-2021-18080 Possible Cross-Site Request Forgery in Combodo iTop CVSS 3.1HIGH 8.1
  • TI-2023-25672 Cross Site Scripting vulnerability in Combodo iTop v.3.1.0-2-11973 allows a local… CVSS 3.1MEDIUM 6.1
  • TI-2022-18593 Authenticated users of Combodo iTop can take over any account CVSS 3.1CRITICAL 9.6
  • TI-2022-08624 Cross-site Scripting in Combodo iTop CVSS 3.1MEDIUM 5.4
See all 80 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences